Page3of 3
Filename: oven-gpg3.tcw
Date: 7/16/03
By:M.Watts
OVEN-G
SCHEMATIC
By: J.Bassett
Rev.Date: 07/26/04
1K
R41
-
+
6
5
75K
0.1uF
7
-
+
1
2
3
20K
40K
R43
100K
+12V
100K
R45
-12V
C
NO
RELAY1
+12V
9
10
8
LM324
-
+
C13
R46
5.1M
Q11
2N3903
R47
10K
1N914
10uF
READY IN
READY
1N914
1N914
D10
14
U10
-
+
12
13
1N914
D12
D11
READY INHIBIT
AUTOSAMPLER
CONTACT
CLOSURE
5VFROM
LAWSON
BOARD
FORREADY
INHIBIT
LM324OPAMPOPERATESUSING
+12VONPIN4AND -12VONPIN11.
R39
1K
100K
R40
COMPARATORCIRCUIT:
COMPARESACTUAL
TEMPERATURE (PIN 5)
TOSETPOINT
TEMPERATURE (PIN6)
R44
R45A
SPADE
SPADE
SPADE
SPADE
50V
+
-
READYLED
READYCIRCUIT
R42
FROMOVENHEATINGAND
COOLINGCIRCUIT
(BLACK)
(WHITE)
SPADE
JUMPER
